Timer housing



Jan. is 1924. 1,479,926

I J. C. OSBORN TIMER HOUSING Filed Aprii a. 1920 INSULA'I/on WEE 9 In-Wg :15

/ Gf'EoR/V.

I My

Patented Jan. 8, 1924.

UNITED STATES PATENT OFFICE.

JESSE C. OSBORN, OF CHICAGO, ILLINOIS, ASSIGNOR TO J. W. DUNTLEY, OF CHICAGO, ILLINOIS.

TIMER HOUSING.

Application. filed April 3,

To all whom it may concern Be it known that I, .Inssn C. OSBORN, a citizen of the UnitedStates', and a resident of the city of Chicago,.in the county of Cook andState of Illinois, have invented certain new and useful Improvements in a Timer Housing; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the numerals of reference markedthereon, which form a part of this specification.

This invention relates to a timer housing of a type that can be adjusted in position 16 over the electric terminals and wires of timers used in internal combustion engines.

Due to the necessity of locating the timers in close proximity to the engine, great difficulty has heretofore been experienced with short circuiting of timers due to oil and dust gathering around the terminals thereof.

It is an object of this invention to provide a separable housing adapted tobe adjusted over the terminals and the outer casing of the timer of an internal combustion engine.

Another object of this invention is to provide a removable housing adapted to enclose and protect the electric terminals and lead wires on the outside of a timer casing.

It is also an object of this invention to provide a timer housing adapted to enclose and protect theelectric terminals and lead wires of the timer casing and having a waterproof insulating gasket whereby the tight fit between the housing and the timer casing is assured.

It is also an object of this invention to provide a timer housing whereby the wires and electrical terminals on the timer are protected from short circuiting due to mechanical injury and oil, dirt or water.

It is an important object of this invention to provide a timer housing adapted to be secured on the timer casing without alteration thereof.

Other and further important objects of this invention will be apparent from the disclosures in the specification and the accompanying drawings.

The invention (in a preferred form) is illustrated in the drawings and hereinafter more fully described.

On the drawings:

Figure l is a view of side elevation of a 1920. Serial No. 370,986.

timer equipped with a housing embodying the principles of this invention.

Figure 2 is a view thereof in end elevation.

Figure .3 is a section on line 3-3 of F igure 2 with parts in elevation.

Figure 4 is a section on-line 44 of Figure 3 with parts shown in elevation.

As shown on the drawings:

The timer housing embodying the prin ciples of this invention is shown secured in position on the outside casing 1 of a timer for an internal combustion engine and comprises separable stamped metal sections 2, 3, 4 and 5. As clearly shown in Figure 1, one of said sections 4 is provided with an outwardly extending projection 6 forming a chamber into which extends the flexible conduit 7 through which the lead wires 8 are brought into the timer housing. As clearly shown in Figures 2 and 4, the sections 2, 3, 4 and 5 are provided at adjacent ends with interfitting flanges 9 and 10 whereby when said sections are assembled a continuous casing is produced. The central part of each of the sections 2, 3,4 and 5 is enlarged to provide a chamber 11 which encloses the electric terminals 12 on the timer 1 and is apert-ured to allow insertion of an internally aperture'd and threaded insulating boss 13 which secures the timer housing to the terminal12. Insulating members 14 which conform to the interior of the chambers 11 serves to insulate the terminals 12 and the lead wires 8 fromthe sections 2, 3, 4 and Said insulating members 14 are preferably constructed of fibre but may be constructed of any insulating material. Due to the fact that the exterior of the casing 1 of most commercial timers is more orlcss uneven, the annular gasket 15 is provided and is usually necessary to assure a tight fit between said casing and the sections 2, 3, 4 and 5. Said annular gasket 15 is preferably constructed of felt or other insulating material and thus aids in insuring perfect insulation between the timer housing and the outer casing 1. The gasket 15 is ordinarily constructed from a single strip of felt or other material and is provided with apertures through which the terminals 12 may be inserted.

The operation is as follows:

The timer housing embodying this invention is adapted to be used on a standard make of timer for internal combustion engines without alteration thereof. In assembling the timer housing the insulating gasket 15 is first placed in position on the outside of the timer casing 1 With the terminals 12 projecting through the apertures therein. The lead wires 8 are then connected to the terminals 12 and secured thereto. The insulating members 1& are next placed in position inside the chambers 11 and the sections through 2, 3, 4. and are placed in position on the casing 1 over the terminals 12 With the interlitting flanges 9 and engaged together.

The insulating portions 13 are secured in positions on the threaded portions oi the terminals 12 and the timer housing is in position and ready for use. The use oi the in sulating gasket 15 is preferable but not necessary since the sections 2, 3, t and 5 altord very good protection for the terminals and lead wires without the use of said gasket.

The sections 2, 3, 4; and 5 comprising the timer housing of this invention may be economically constructed from stamped metal and since they are interchangeable sections which are damaged may be easily replaced. I

I am aware that numerous details of construction may be varied. through a wide range Without departing "from the principles of this invention, and T therefore do not purpose limiting the patent granted otherwise than necessitated by the prior art.

I claim as my invention:

1. A timer housing comprising a plurality of inter-fitting chambered metal sections, insulating means in each of said sections, and

'means for introducing and securing a conduit in one of said sections.

2. The combination with a timer and the external electrical connections thereon, of a plurality of chambered sections each engaged over one at said electricalconnections, and means insulating said chambered sections from the electrical. connections and from the timer casing.

3. In combination, a timer, terminals pr0- jecting from said timer, each of said terminals being threaded, a metallic housing for said timer and terminals having holes one at each terminal, internally threaded bushings in said holes cooperating with the threads on the terminals, said bushings having heads on their external ends, whereby said cooperation of the threads will secure the housing to the timer.

4. The combination with the timer and the e ternal electric terminals thereon, of a housing comprising a plurality of chambered connected sections, a central aperture in each of said sections, and an insulating boss engaged through each of said apertures and secured to one of the electric terminals whereby the housing is held securely in position on the timer.

5. The combination with a timer and the external electrical terminals thereof, of a housing enclosing said terminals, said housing being separable into arcuate pieces and means for securing the housing to said terminals and insulating it therefrom.

6. The combination with a timer for internal combustion engines and the external electrical connections thereof, of a timer housing comprising interfitting chambered sections adapted to enclose said electrical connections, and means insulating said interlitting sections from the timer casing and from said electrical connections.

7. The combination with a timer of a housing therefor comprising a plurality of interchangeable sections having interfitting flanges on the adjacent ends thereof, and means for insulating said sections from the timer.

In testimony whereof I have hereunto subscribed my name in the presence of two subscribing witnesses.

JESSE O. OSBORN. Witnesses Cannon HILL, EARL M. Hsnnlnn. 

